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db2 - How can i create a stored procedure for the procedure?

I have a procedure inside of a service program, how can i create a stored procedure for the below Procedure.

Dcl-Pi ProcedureName Varchar(2000);
     InputStr  Varchar(2000) CONST;
     OutStrLen Uns(5) OPTIONS(*NOPASS) CONST;
End-Pi;

I created Stored procedure for the procedure as below, but When i call this procedure it throwing error(Data type mismatch)

My Stored procedure:

CREATE PROCEDURE STOLIB.STOPRO3 ( 
    IN NEW_PARAMETER BINARY(2000) ) 
    LANGUAGE RPGLE 
    SPECIFIC STOLIB.STOPRO3 
    NOT DETERMINISTIC 
    MODIFIES SQL DATA 
    CALLED ON NULL INPUT 
    EXTERNAL NAME 'STOLIB/SRVPGM(ProcedureName)' 
    PARAMETER STYLE SQL ; 

What i am missing while creating this Stored Procedure?


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